class Prism::WhileNode

Represents the use of the ‘while` keyword, either in the block form or the modifier form.

bar while foo
^^^^^^^^^^^^^

while foo do bar end
^^^^^^^^^^^^^^^^^^^^

Attributes

predicate[R]

attr_reader predicate: Prism::node

statements[R]

attr_reader statements: StatementsNode?

Public Class Methods

new(source, node_id, location, flags, keyword_loc, closing_loc, predicate, statements) click to toggle source

Initialize a new WhileNode node.

# File prism/node.rb, line 17956
def initialize(source, node_id, location, flags, keyword_loc, closing_loc, predicate, statements)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @keyword_loc = keyword_loc
  @closing_loc = closing_loc
  @predicate = predicate
  @statements = statements
end

type() click to toggle source

Return a symbol representation of this node type. See ‘Node::type`.

# File prism/node.rb, line 18067
def self.type
  :while_node
end

Public Instance Methods

===(other) click to toggle source

Implements case-equality for the node. This is effectively == but without comparing the value of locations. Locations are checked only for presence.

# File prism/node.rb, line 18073
def ===(other)
  other.is_a?(WhileNode) &&
    (flags === other.flags) &&
    (keyword_loc.nil? == other.keyword_loc.nil?) &&
    (closing_loc.nil? == other.closing_loc.nil?) &&
    (predicate === other.predicate) &&
    (statements === other.statements)
end

accept(visitor) click to toggle source

def accept: (Visitor visitor) -> void

# File prism/node.rb, line 17968
def accept(visitor)
  visitor.visit_while_node(self)
end

begin_modifier?() click to toggle source

def begin_modifier?: () -> bool

# File prism/node.rb, line 18004
def begin_modifier?
  flags.anybits?(LoopFlags::BEGIN_MODIFIER)
end

child_nodes() click to toggle source

def child_nodes: () -> Array[nil | Node]

# File prism/node.rb, line 17973
def child_nodes
  [predicate, statements]
end

Also aliased as: deconstruct

closing() click to toggle source

def closing: () -> String?

# File prism/node.rb, line 18052
def closing
  closing_loc&.slice
end

closing_loc() click to toggle source

attr_reader closing_loc: Location?

# File prism/node.rb, line 18022
def closing_loc
  location = @closing_loc
  case location
  when nil
    nil
  when Location
    location
  else
    @closing_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
  end
end

comment_targets() click to toggle source

def comment_targets: () -> Array[Node | Location]

# File prism/node.rb, line 17986
def comment_targets
  [keyword_loc, *closing_loc, predicate, *statements] #: Array[Prism::node | Location]
end

compact_child_nodes() click to toggle source

def compact_child_nodes: () -> Array

# File prism/node.rb, line 17978
def compact_child_nodes
  compact = [] #: Array[Prism::node]
  compact << predicate
  compact << statements if statements
  compact
end

copy(node_id: self.node_id, location: self.location, flags: self.flags, keyword_loc: self.keyword_loc, closing_loc: self.closing_loc, predicate: self.predicate, statements: self.statements) click to toggle source

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?keyword_loc: Location, ?closing_loc: Location?, ?predicate: Prism::node, ?statements: StatementsNode?) -> WhileNode

# File prism/node.rb, line 17991
def copy(node_id: self.node_id, location: self.location, flags: self.flags, keyword_loc: self.keyword_loc, closing_loc: self.closing_loc, predicate: self.predicate, statements: self.statements)
  WhileNode.new(source, node_id, location, flags, keyword_loc, closing_loc, predicate, statements)
end

deconstruct()

def deconstruct: () -> Array[nil | Node]

Alias for: child_nodes

deconstruct_keys(keys) click to toggle source

def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, keyword_loc: Location, closing_loc: Location?, predicate: Prism::node, statements: StatementsNode? }

# File prism/node.rb, line 17999
def deconstruct_keys(keys)
  { node_id: node_id, location: location, keyword_loc: keyword_loc, closing_loc: closing_loc, predicate: predicate, statements: statements }
end

inspect() click to toggle source

def inspect -> String

# File prism/node.rb, line 18057
def inspect
  InspectVisitor.compose(self)
end

keyword() click to toggle source

def keyword: () -> String

# File prism/node.rb, line 18047
def keyword
  keyword_loc.slice
end

keyword_loc() click to toggle source

attr_reader keyword_loc: Location

# File prism/node.rb, line 18009
def keyword_loc
  location = @keyword_loc
  return location if location.is_a?(Location)
  @keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

save_closing_loc(repository) click to toggle source

Save the closing_loc location using the given saved source so that it can be retrieved later.

# File prism/node.rb, line 18036
def save_closing_loc(repository)
  repository.enter(node_id, :closing_loc) unless @closing_loc.nil?
end

save_keyword_loc(repository) click to toggle source

Save the keyword_loc location using the given saved source so that it can be retrieved later.

# File prism/node.rb, line 18017
def save_keyword_loc(repository)
  repository.enter(node_id, :keyword_loc)
end

type() click to toggle source

Return a symbol representation of this node type. See ‘Node#type`.

# File prism/node.rb, line 18062
def type
  :while_node
end